build PACPerformance in Settings [3/4]

Change-Id: I8042aea91bb851a61827ac9c2317650dc5541b0e
Add protobuf-c project to the build

 * Needed for build of RIL on some devices.

Change-Id: I49f1db8bbc9df522679fd887d05d8ad0dc0ca702
Add CURL and BSON to the build.

 * Needed for CNE and other stuff

Change-Id: Iff259c2abbf2b25a35e95708d66ba015d3b52901
Track CM's chromium.org's openssl

Change-Id: I3e82075981caee1b590067a8706d037a6c3dd4b1
Sync 4.6 toolchain in prebuilt.

- kernel.mk using 4.6 toolchain from prebuilt folder not prebuilts.
- https://github.com/PAC-man/android_build/blob/pac-4.4/core/tasks/kernel.mk#L151
- fix this error : http://gw.gd/RXQw

Change-Id: I573ba1492d021dd8014aa1eb74996d78da468262
Revert "Sync 4.6 toolchain in prebuilt."

This reverts commit 612bdcd38128a68729bb73ba4c36700ad6b091bc.

Google didn't change this, so why are we changing this. You're using a custom
toolchain, your problem! Not ours....

https://github.com/android/platform_manifest/blob/android-4.4_r1.2/default.xml#L392

Change-Id: Ie3614115ec9b260c936210053fea84e9a160bd42
Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>
Track our own android_hardware_libhardware_legacy repo

PS2: Re-add the groups="pdk"

Change-Id: I4871df1fb14b5f05cafc02940ceb0de7d6911000
Update manifest at building of release 2:
- Use kernel pac-patch
- Active Display works now: therefore revert frameworks_base and packages_apps_Settings to PAC-rom
- Use toolchain 4.8.3
Merge branch 'pac-4.4' of https://github.com/spezi77/pacman into pac-4.4

Conflicts:
	default.xml